Question

(x-2)(x+2)+(x-3)(x+3)+(x-4)(x+4)+(x-5)(x+5)=

Answer 1

(Sa se stie ca ^i nseamna la puterea...cutare...intelegi tu) sa inşepem:)) (x^2-4)+(x^2-9)+(x^2-16)+(x^2-25) Sper ca te.am ajutat

Answer 2

= xpatrat- 4+ xpatrat-9+x patrat-16+xpatrat-25   x patrat se reduce
= -4-9-16-25
= -13-16-25
= -29-25
= -54